A.T. Robertson Commentary Galatians 5:26

"Let us not become vainglorious, provoking one another, envying one another." — Galatians 5:26 (ASV)

Let us not be (μη γινωμεθα). Present middle subjunctive (volitive), "Let us cease becoming vainglorious" (κενοδοξο), late word only here in N.T. (κενοσ, δοξα). Once in Epictetus in same sense.

Provoking one another (αλληλους προκαλουμενο). Old word προκαλεω, to call forth, to challenge to combat. Only here in N.T. and in bad sense. The word for "provoke" in Heb 10:24 is παροξυσμον (our "paroxysm").

Envying (φθονουντες). Old verb from φθονος. Only here in N.T.